Develop Bugs

Cyanogen boot loop

i have googled this and tried multiple ways of installing it but i always get a boot loop. Whats going on?

Hey if you just want to get your phone back again, just flash another firmware from the one you used. Should start up just fine.

have done already but i actually want to install cyn mod. I managed to get as far as the main screen buit then immediately reboots. I cant find wifi modules for latest doom kernel either they arent in his thread.

FLASH KERNEL FIRST (from cyanogenMOD or doomkernel for CM7 etc)
Than flash cyanogenMOD
any other way will make your phone bootloop.

I think you have to unlock BL via SE in order to flash CM..
of course you would likely broke your warranty.
this based on my experience (I'm a newbie too in the android's world). this is what I've done :
1. unlock BL via SE (not all carriers allowed this!)..
2. flash .42 fw
3. follow the instructions given on CM thread by fxp.
it's worked for me.
goodluck.

I've had this problem before. Did you wipe the delvic cache, wipe data/factory reset and wipe cache partition in CWM before you flashed the update.zip?

It would seem it was a specific version of cm that was making it bootloop the one from dooms thread 7.2.0 works fine and also the one before the latest stable release also worked fine. I however found a problem with the spacebar on the keyboard when using the phone in landscape so am now going to try arconium and doom kernel its a shame really because cm from what i used of it looked really nice.

Try 7.1.0.1.
I got bootloop too with 7.1.0.2

Kuroyukii said:
Try 7.1.0.1.
I got bootloop too with 7.1.0.2
Click to expand...
Click to collapse
Aye thats the one i used but ended up having a problem with the spacebar not working in landscape so am on acronium now which is all good but superuser keeps crashing meh always something eh.

at first im also having the same problem,just follow the instruction by FXP : flash bb56,flash fw.42,flash FXP kernel via fastboot,flash update via recovery,wipe dalvik cache,reboot..
Sent from my LT18i using Tapatalk

I have this exact same problem
I've done everything I was supposed to, I think, and still doesn't work. It boots, shows me the little Android "Welcome!" screen, and before I have time to press anything or begin setting up my device, it reboots into the Cyanogenmod loading screen. I've tried different kernels, different basebands, every time wiping Dalvik cache, etc. and it REFUSES to work. I'm pretty desperate by now because I really wanted to use this ROM so any help is greatly appreciated.
I also followed precisely rashid.fairus' instructions and it still does the exact same thing.

You need to Wipe Data, Cache and Dalvik ----- BEFORE AND AFTER FLASH
I do this here, and positive feedback

Velcis Ribeiro said:
You need to Wipe Data, Cache and Dalvik ----- BEFORE AND AFTER FLASH
I do this here, and positive feedback
Click to expand...
Click to collapse
Sometimes you DON'T WIPE ANYTHING AT ALL. Just flash CM and Google.
Works for me on Xperia Acro S.

gabantarung said:
Sometimes you DON'T WIPE ANYTHING AT ALL. Just flash CM and Google.
Works for me on Xperia Acro S.
Click to expand...
Click to collapse
Only when you upgrade to a later version of the same ROM.
Sent from my Xperia Arc S using xda premium

Velcis Ribeiro said:
You need to Wipe Data, Cache and Dalvik ----- BEFORE AND AFTER FLASH
I do this here, and positive feedback
Click to expand...
Click to collapse
Wipe dalvik and cache when upgrading to later version, wiping data will reset phone to factory settings and you lose all personal data.
僕のLT18iから送られてきた

[Q] [Arc S] Installing any JB - same problem

I have a problem with the installation of JB. No matter what ROM I install, after boot, when home screen appear, my touch screen does not respond. I've tried a lot of roms and a lot of kernels. I have unlocked BL. In stock rom I have no problems.
What could be causing this? Should I format system before installing rom via recovery or just wipe data, cache and dalvik? When I should flash kernel? Before/after installing rom? I care about CM10. Plz help.
P.S. sorry for my english

saymonek said:
I have a problem with the installation of JB. No matter what ROM I install, after boot, when home screen appear, my touch screen does not respond. I've tried a lot of roms and a lot of kernels. I have unlocked BL. In stock rom I have no problems.
What could be causing this? Should I format system before installing rom via recovery or just wipe data, cache and dalvik? When I should flash kernel? Before/after installing rom? I care about CM10. Plz help.
P.S. sorry for my english
Click to expand...
Click to collapse
I have Neo,and this is how i'm installing it: first wipe everything (data,wipe cache and Dalvik cache),flash the rom,and then flash the kernel.

georgeiulian89 said:
I have Neo,and this is how i'm installing it: first wipe everything (data,wipe cache and Dalvik cache),flash the rom,and then flash the kernel.
Click to expand...
Click to collapse
I've tried to do that way but but not succeed

Certain ROMs require phone-specific patch, make sure you install it!
Other ROMs have different downloads for different phones, make sure to download correct one!
If you install wrong phone ROM, touch dies.

All question threads belong here in Q&A so please post in the correct sections going forward.
Thanks
AvRS

saymonek said:
I have a problem with the installation of JB. No matter what ROM I install, after boot, when home screen appear, my touch screen does not respond. I've tried a lot of roms and a lot of kernels. I have unlocked BL. In stock rom I have no problems.
What could be causing this? Should I format system before installing rom via recovery or just wipe data, cache and dalvik? When I should flash kernel? Before/after installing rom? I care about CM10. Plz help.
P.S. sorry for my english
Click to expand...
Click to collapse
The problem is caused by the kernal. You MUST have JB kernel to flash any JB ROM. Generally, for each ROM you will find the recommended kernel and the required steps. Do exactly like posted by OP.
As an example, see here: http://forum.xda-developers.com/showthread.php?t=1979829
You can make an idea on the steps to follow.

okty2k said:
The problem is caused by the kernal. You MUST have JB kernel to flash any JB ROM. Generally, for each ROM you will find the recommended kernel and the required steps. Do exactly like posted by OP.
As an example, see here: http://forum.xda-developers.com/showthread.php?t=1979829
You can make an idea on the steps to follow.
Click to expand...
Click to collapse
Ok, so now I have installed Xperia T rom (7.0.A.3.195 v6.0 for ARC/ARC-S). Should I flash V77 baseband, then flash kernel from CM10 FXP150 pack via fastboot, make a wipe (data, cache, dalvik) then install ROM via Recovery, and then install GAPPS and it should work? This is what i'm gonna do, so if I'm wrong please tell me.
EDIT:
(edited in case someone had same problem)
I found the solution:
I had to flash BB 72 and libs, then flash ROM+GAPPS and libs once again, then everything works awesome. (edited in case someone had same problem)

saymonek said:
(edited in case someone had same problem)
I found the solution:
I had to flash BB 72 and libs, then flash ROM+GAPPS and libs once again, then everything works awesome. (edited in case someone had same problem)
Click to expand...
Click to collapse
I'd got a touch screen problem.
Could you please tell me that how can i flash 'libs once again' So, I can try on my Arc.
Thank you very much.

[Q]Why do i have problems with installing custom roms

I have locked bootloader, and rooted Arc S. ICS .587. Whenever i try to install custom rom, usually it demands cache and dalvik to be wiped and i do it. But when iinstall it, (i tried 2 roms on with aroma instaler and one without) and on both i got bootloop. Whenever i tried to install mod that also required wiping cache and dalvik i also always got bootloop. When i dont wipe it phone can boot, but features that i wanted to install dont work properly.
I am really intrested in installing custom rom, can anyone help me??? :crying:
Thanx in advance!

Re-read the instructions of whatever you're flashing and keep trying.

Very useful...

DjDexter5GHz said:
Very useful...
Click to expand...
Click to collapse
Not a lot more to suggest when People make such vague posts.

Usually you should make factory reset and format /system
Have you?

DjDexter5GHz said:
I have locked bootloader, and rooted Arc S. ICS .587. Whenever i try to install custom rom, usually it demands cache and dalvik to be wiped and i do it. But when iinstall it, (i tried 2 roms on with aroma instaler and one without) and on both i got bootloop. Whenever i tried to install mod that also required wiping cache and dalvik i also always got bootloop. When i dont wipe it phone can boot, but features that i wanted to install dont work properly.
I am really intrested in installing custom rom, can anyone help me??? :crying:
Thanx in advance!
Click to expand...
Click to collapse
Pls specify which custom rom you wanna install we can help you more. Check out the link at the bottom of my signature if you're new here. Do some reading.
Sent from my LT15i using xda app-developers app

Problem with wiping dalvik cache [XperiaS]

Hi!
Sometimes i cant wipe dalvik.
For example - used XZXperience 1 and wanted to install XZX2, tried to wipe dalvik (can wipe other stuff), but cant, just nothing happens when click on Wipe dalvik.
Using KA kernel 8
Only solution is to flash stock firmware and do all process again, what im doing right now

martin366 said:
Hi!
Sometimes i cant wipe dalvik.
For example - used XZXperience 1 and wanted to install XZX2, tried to wipe dalvik (can wipe other stuff), but cant, just nothing happens when click on Wipe dalvik.
Using KA kernel 8
Only solution is to flash stock firmware and do all process again, what im doing right now
Click to expand...
Click to collapse
for me XZX1 to XZX2 is fine.
I never happen this.
Flash CWM again??

quezacotl0215 said:
for me XZX1 to XZX2 is fine.
I never happen this.
Flash CWM again??
Click to expand...
Click to collapse
Tried, not helping.

Try manually by:
Using a file explorer go to data>dalvik-cache and wipe everything reboot to recovery and to what you need there
Sent from my Xperia S using xda app-developers app

flash ics17 kernel, then try again.
Sent from my LT26i using xda premium

Same prob.

This problem related to the kernel you are using.. flash Advanced Stock ICS or Stock+ Kernel and then try again.

I tried, it wont help. Still cant accsess dalvik cache wiping.
Like i sayed: only solution is to flash stock firmware, then root it, and then works. If i flash KAv8 or other stock ICS kernels, then problem comes back.

Go to recovery ,advanced option and mount cache. Than try it again.

stuck on sony logo

dear all,
please am facing a very bad problem and i need urgent help.
every time i wanted to flash a custom rom, to flash a stock rom, re-root the phone.
i mean that if i was in a custum rom and want to change the rom i stuck on the sony logo which force me to re-do all the first process (flash a stock rom, re-root the phone),
well my problem and the main question is... what am doing wrong?!?! please heeeeeelp.

When you install a custom rom install the kernel provided with that rom and read the instruction on that specific rom how to install
Sent from my LT26i using xda premium

oache said:
When you install a custom rom install the kernel provided with that rom and read the instruction on that specific rom how to install
Sent from my LT26i using xda premium
Click to expand...
Click to collapse
am doing all the steps mentioned, and am still on locked boot loader.

thats your problem you cant have custom roms on locked bootloaders.

when you install other custom roms you should follow those steps
factory reset
cache partition wipe
wipe davlik cache (cwm>advanced)
(i also format system but its optional)
install rom zip
reboot... i do this and i have never stuck on sony's logo

soldiers33 said:
thats your problem you cant have custom roms on locked bootloaders.
Click to expand...
Click to collapse
Yes you can but only stock based roms. Which are you trying to flash?
Sent from my 4.2.2 Xperia S via Tapatalk

devilakos said:
when you install other custom roms you should follow those steps
factory reset
cache partition wipe
wipe davlik cache (cwm>advanced)
(i also format system but its optional)
install rom zip
reboot... i do this and i have never stuck on sony's logo
Click to expand...
Click to collapse
wow thanks it worked after factory reset, i never format my phone before installing a custom rom, i thought while installing the custom rom it writes formatting system, wiping cahe.. etc... though i thought i do automatic
really thanks for helping

Ben36 said:
Yes you can but only stock based roms. Which are you trying to flash?
Sent from my 4.2.2 Xperia S via Tapatalk
Click to expand...
Click to collapse
am flashing XZXperience v2 rom, well as i noticed and a friend before your post figured it out, i must factory rest.. i really worked and didnt stuck on sony logo
thanks all for helping and replying me
this forum rooooooocks